Apple O-rings and MicrOring® seals are specified by three characteristics: size, hardness, and material. Prior to seal specification, please check for availability. We add to tooling list all the time.
SIZE: Standards are specified by their AS568* (ISO 3601) dash number. Non-standards are referenced by I.D. and width(cross section). Click on the following links to reference the seal size tables you need. Standard AS568* Size O-Rings, O-Rings Boss Gaskets for Straight Thread Tube Fitting, O-Ring Seal Sizes
HARDNESS: This is specified by a two-digit Shore A durometer number, ranging from 25(soft) to 90(hard), depending on the type of elastomer. Our standard durometer is 70 Shore A, except for Viton which is 75 Shore A. Standard durometer tolerance is ±5.
MATERIAL: Our standard range of materials is designated by a two-letter abbreviation for each elastomer. See Section 6 for designations and further discussions of materials.
*Note: The current revision of the standard is C but it changes periodically.
When ordering provide us with the following:
Standard O-Ring - If you were to order 10,000 pieces of an AS568* (ISO 3601) -110 in 70 durometer Silicone your order would read:
10,000 -110 (dash number) 70SL
Non-standard - If you were to order 25,000 pieces with an internal diameter of .144" and a cross section of .025" 70 durometer Buna-N your order would read:
25,000 .144 I.D. x .025 C.S. 70BN
*Note: The current revision of the standard is C but it changes periodically.
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FAX: 716-684-8302
e-mail: info@applerubber.com